Home / 5,551.11-7,647.49-3,869.46

Finding the Fourth Proportional to 5,551.11, 7,647.49 and 3,869.46

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Solution

The fourth proportional to 5,551.11, 7,647.49 and 3,869.46 is: 5,330.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,551.11 : 7,647.49 = 3,869.46 : x
  2. Step 2: Convert to fraction form
    5,551.11/7,647.49 = 3,869.46/x
  3. Step 3: Cross multiply
    5,551.11x = 7,647.49 × 3,869.46
  4. Step 4: Simplify right side
    5,551.11x = 29,591,656.66
  5. Step 5: Solve for x
    x = 29,591,656.66/5,551.11
  6. Step 6: Final answer
    x = 5,330.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.